130402540225 has 12 divisors (see below), whose sum is σ = 161861366524. Its totient is φ = 104217376320.

The previous prime is 130402540207. The next prime is 130402540291. The reversal of 130402540225 is 522045204031.

It can be written as a sum of positive squares in 6 ways, for example, as 2405313936 + 127997226289 = 49044^2 + 357767^2 .

It is not a de Polignac number, because 130402540225 - 2⁷ = 130402540097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130402540193 and 130402540202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2590974 + ... + 2640823.

Almost surely, 2^130402540225 is an apocalyptic number.

It is an amenable number.

130402540225 is a deficient number, since it is larger than the sum of its proper divisors (31458826299).

130402540225 is an equidigital number, since it uses as much as digits as its factorization.

130402540225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5232804 (or 5232799 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 130402540225 its reverse (522045204031), we get a palindrome (652447744256).

The spelling of 130402540225 in words is "one hundred thirty billion, four hundred two million, five hundred forty thousand, two hundred twenty-five".